阅读说明：本技术 流体去静电装置 (Fluid static electricity removing device ) 是由 陈炳旭 鲁建国 张绍赐 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种流体去静电装置,包含有阀体、单向逆止阀、排放槽以及静电导出器。单向逆止阀安装于阀体之中,排放槽设置于阀体之中,且排放槽连接于单向逆止阀。此外,排放槽包含有侧壁,静电导出器安装于排放槽的侧壁,以将流体中的静电荷导出,并利用排放槽将流体排出阀体。(The invention discloses a fluid static electricity removing device, which comprises a valve body, a one-way check valve, a discharge groove and a static electricity guider. The one-way check valve is arranged in the valve body, the discharge groove is arranged in the valve body, and the discharge groove is connected with the one-way check valve. In addition, the discharge groove includes a side wall, and the static electricity discharger is installed at the side wall of the discharge groove to discharge the static electricity in the fluid and discharge the fluid out of the valve body using the discharge groove.)

1. A fluid destaticizing device, comprising:

a valve body;

the one-way check valve is arranged in the valve body;

the discharge groove is arranged in the valve body, is connected with the one-way check valve and comprises a side wall; and

and a static electricity discharger mounted on the side wall of the discharge groove to discharge the static charge in the fluid and discharge the fluid out of the valve body by using the discharge groove.

2. The fluid static elimination apparatus of claim 1, wherein the one-way check valve comprises a piston and a spring, wherein when the pressure of the fluid is greater than a predetermined value, the piston compresses the spring to allow the fluid to flow to the drain tank.

3. The fluid destaticizing device of claim 2, wherein the piston is a perfluoroalkoxyalkane polymer piston and the valve body is a perfluoroalkoxyalkane polymer valve body.

4. The fluid destaticizing device according to claim 3, wherein said spring is a perfluoroalkoxyalkane polymer spring.

5. The fluid destaticizing device according to claim 3, wherein said spring is a metal spring having a perfluoroalkoxyalkane polymer coating.

6. The fluid destaticizing device according to claim 1, wherein said valve body comprises a joint to connect to a port of a delivery tube of a fluid delivery line.

7. The fluid static discharge apparatus of claim 1, wherein said valve body includes a discharge port connected to said discharge tank for discharging said fluid out of said valve body.

8. The fluid destaticizing device according to claim 7, wherein said drain port is connected to an external drain.

9. The fluid destaticizing device according to claim 1, wherein said static electricity derivation means comprises a static electricity derivation needle connected to a ground terminal.

10. The fluid destaticizing device according to claim 9, wherein said static conductive exit needle comprises an inert metal static conductive exit needle.

Technical Field

The invention relates to a static electricity removing device, in particular to a fluid static electricity removing device.

Background

Static electricity is a natural phenomenon in nature, and when an object charged with static electricity contacts an object having a potential difference with the object, charge transfer occurs, so that a spark discharge phenomenon occurs.

Static electricity may be generated when two different substances rub against each other, contact with each other, and are separated from each other, and serious people may ignite surrounding flammable environments to cause fire or explosion accidents. The problems of static electricity and the resulting hazards are therefore of increasing concern. In the industries of chemistry, petroleum, coating, plastic, printing, electronics and the like, the potential electrostatic hazard problem is easy to cause accidents, thereby causing casualties and property loss.

Static electricity may be generated in an industrial process by various operations such as tearing, peeling, stretching, impacting materials, pulverizing, sieving, rolling, stirring, transporting, spraying, filtering materials, and various operations such as flowing, splashing, spraying of gas and liquid, and if static electricity is accumulated to a dangerous level, electrostatic discharge may occur. The electrostatic discharge spark has Ignition Energy, so that when the spark Energy generated by the electrostatic discharge is larger than the Minimum Ignition Energy (MIE) required by an explosive mixture, the spark Energy can be an Ignition source causing fire or explosion.

According to the statistics of the research report database of the labor safety and health research institute, the fire hazard or explosion hazard occurring in the petrochemical industry is the highest, and the manufacturing industries such as the chemical material industry and the chemical products are the next, the main reason is that the petrochemical industry and the chemical industry are mostly flammable liquid, gas and other substances, and therefore, in the electrostatic hazard accident industry, the proportion of the three types is higher.

A first observation example: at about 13 pm on 29 th of 10/2007, a fire and a series of explosions occurred at a chemical storage and transportation site in iowa, usa, and the production area was undergoing an Ethyl acetate (Ethyl acetate) injection into a 300-gallon barrel tank, and an operator delivered the solvent to the top closed end of the barrel using an elastomer hose, heard the sound of the explosion soon, delayed burning of a large fire to a warehouse, and ignited the other flammable and combustible liquids stored, causing 1 employee minor injury and 1 firefighter burn.

Case two: when a fire explosion accident occurs at about 14 pm on 11/11 th of 2008, a certain company for producing waterproof coating in peach county, and when the accident occurs, a solvent-based coating production process is performed in a factory, organic solvent Toluene (Toluene) and paint solvent mixed coating raw materials are mixed and stirred, when a Toluene barrel tank at the bottom is pressurized by air and used for conveying Toluene solvent to be injected into a feeding port above a stirring tank body, the fire explosion accident occurs suddenly, and 1 of two field operators cannot be killed due to serious injury, and the other 1 of the two field operators can be burned seriously.

According to the cases at home and abroad, if the problem of static electricity cannot be overcome during liquid conveying, serious consequences can be caused. Therefore, how to safely and reliably convey liquids such as chemical solvents and the like can effectively reduce the occurrence of accidental disasters and contribute to improving the safety of the whole production.

Disclosure of Invention

This summary is provided to provide a simplified summary of the disclosure in order to provide a basic understanding to the reader. This summary is not an extensive overview of the disclosure and is intended to neither identify key/critical elements of the embodiments nor delineate the scope of the embodiments.

An object of the present invention is to provide a fluid static electricity removing apparatus, which can be conveniently installed in a fluid pipeline, immediately discharge static electricity accumulated in the pipeline, and simultaneously discharge fluid contacting with metal, so as to prevent process contamination.

To achieve the above objects, one aspect of the present invention is a fluid static electricity removing device including a valve body, a one-way check valve, a discharge tank, and a static electricity discharger.

The one-way check valve is arranged in the valve body, the discharge groove is arranged in the valve body, and the discharge groove is connected with the one-way check valve. In addition, the discharge groove includes a side wall, and the static electricity discharger is installed at the side wall of the discharge groove to discharge the static electricity in the fluid and discharge the fluid out of the valve body using the discharge groove.

In some embodiments, the check valve includes a piston and a spring, wherein when the pressure of the fluid is greater than a predetermined value, the piston compresses the spring to allow the fluid to flow to the discharge groove.

In some embodiments, the piston is a perfluoroalkoxy alkane Polymer (PFA) piston and the valve body is a perfluoroalkoxy alkane Polymer (PFA) valve body.

In some embodiments, the spring is a perfluoroalkoxy alkane Polymer (PFA) spring.

In some embodiments, the spring is a metal spring and has a coating of perfluoroalkoxy alkane Polymer (PFA).

In some embodiments, the valve body includes a joint to connect to a port of a delivery tube of a fluid delivery line.

In some embodiments, the valve body includes a drain port coupled to the drain groove to drain fluid out of the valve body.

In some embodiments, the drain is connected to an external drain pipe.

In some embodiments, the electrostatic discharger includes an electrostatic discharge pin connected to the ground terminal.

In some embodiments, the electrostatic lead-out pin comprises an inert metal electrostatic lead-out pin.

Therefore, the fluid static electricity removing device can be automatically opened according to the pressure of the fluid to discharge static electricity accumulated in the conveying pipe out of the pipeline, metal pollution of the fluid is reduced by the piston, the spring and the valve body which are made of PFA materials, and part of the fluid contacting with the metal static electricity guider can be directly discharged through the discharge port, so that the pollution of the process fluid is effectively avoided, the production quality of a production line is improved, the safety of fluid transmission is improved, and the safety and the process yield of the production process are greatly improved.

Drawings

In order to make the aforementioned and other objects, features, advantages and embodiments of the invention more comprehensible, the following description is given:

fig. 1 is a schematic view illustrating a fluid static electricity removing apparatus installed in a fluid conveying pipeline according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of static charge build-up in a pipeline as fluid transport is simulated;

FIG. 3 is a schematic diagram of the discharge of static electricity through the fluid static discharge device and the discharge of a portion of fluid during simulated fluid delivery.

[ notation ] to show

100: fluid static electricity removing device

110: valve body

120: joint part

130: one-way check valve

140: piston

150: spring

160: discharge tank

162: side wall

170: discharge port

180: static electricity leading-out device

190: grounding terminal

200: fluid conveying pipeline

210: delivery pipe

220: fluid, especially for a motor vehicle

230: interface

240: static charge

250: discharging fluid

300: external drain pipe

Detailed Description

The following detailed description of the embodiments with reference to the drawings is not intended to limit the scope of the invention, but rather to limit the scope of the invention to the particular arrangements of components, structures, or arrangements of components which can be rearranged to produce a device with equivalent functionality. In addition, the drawings are for illustrative purposes only and are not drawn to scale. For ease of understanding, the same or similar elements will be described with the same reference numerals in the following description.

Further, the terms (terms) used throughout the specification and claims have the ordinary meaning as is accorded to each term commonly employed in the art, in the context of the present invention, and in the context of specific contexts, unless otherwise indicated. Certain terms used to describe the invention are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the invention.

In the scope of the embodiments and the claims, unless the context requires otherwise, the word "a" or "an" may mean "one or more". The numbers used in the steps are only used for indicating the steps for convenience of description, and are not used for limiting the sequence and the implementation manner.

Furthermore, the terms "comprising," "including," "having," "containing," and the like, as used herein, are intended to be open-ended terms that mean including, but not limited to.

Referring to fig. 1 to 3, fig. 1 is a schematic view illustrating a fluid static electricity removing device installed in a fluid conveying pipe, fig. 2 is a schematic view illustrating static electricity accumulation in the pipe, and fig. 3 is a schematic view illustrating static electricity discharge through the fluid static electricity removing device and partial fluid discharge.

As shown in fig. 1 to 3, the fluid static electricity removing apparatus 100 includes a valve body 110, a check valve 130, a discharge groove 160 and a static electricity discharger 180.

The check valve 130 is installed in the valve body 110, the discharge groove 160 is disposed in the valve body 110, and the discharge groove 160 is connected to a downstream of the check valve 130. The static charge extractor 180 is mounted to the sidewall 162 of the drain tank 160 to extract the static charge 240 from the fluid 220 and to discharge the drain fluid 250 out of the valve body 110 using the drain tank 160. Since the fluid 250 is in contact with the metal, the fluid contacting the metal pin of the electrostatic extractor 180 is discharged to the electrostatic discharge apparatus 100 to avoid contamination of the subsequent process.

In some embodiments, the valve body 110 includes a joint portion 120 for connecting the port 230 of the delivery pipe 210 of the fluid delivery pipe 200, but the invention is not limited thereto, and the joint portion 120 may also be connected to any other component of the fluid delivery pipe 200, such as a solenoid valve or a bypass pipe, for conducting static electricity discharge and fluid discharge, without departing from the spirit and scope of the invention.

In addition, the valve body 110 further includes a discharge port 170 connected to the discharge groove 160 to discharge the fluid 220 out of the valve body 110. Generally, the drain 170 is used to connect to an external drain pipe 300 to deliver the drain fluid 250 to a fluid recovery tank or the like.

In some embodiments, the static electricity extractor 180 comprises a static electricity extraction pin electrically connected to the ground 190 to guide the static electricity from the fluid 220 to the ground 190 to neutralize the static electricity and prevent the static electricity from accumulating in the transportation pipe 210.

In some embodiments, delivery tube 210 is a fluid delivery tube made from perfluoroalkoxy alkane Polymers (PFA).

In some embodiments, the fluid is a chemical liquid, an organic solvent, or a Slurry with solid particles (Slurry), etc. commonly used in plants.

In some embodiments, the check valve 130 includes a piston 140 and a spring 150, and when the pressure of the fluid is greater than a predetermined value, for example, greater than 10Kpa, the piston 140 compresses the spring 150 to make the fluid flow to the discharge groove 160 and contact the static electricity guider 180 disposed perpendicular to the sidewall 162 of the discharge groove 160 to guide the static electricity to the ground 190.

In addition, since the static electricity extractor 180 is vertically disposed on the sidewall 162 of the discharge groove 160 in a needle shape, the static electricity extractor 180 is vertical to the flowing direction of the discharged fluid 250, thereby further preventing the fluid from splashing, preventing the fluid contacting the metal static electricity extractor 180 from flowing back into the delivery pipe 210, and contributing to improving the quality and stability of the subsequent manufacturing process.

In some embodiments, the static electricity discharge needle comprises an inert metal static electricity discharge needle made of inert metal (Noble metal) to utilize the strong oxidation and corrosion resistance of the inert metal, which may be made of ruthenium, rhodium, palladium, silver, osmium, iridium, platinum and/or gold.

In some embodiments, the piston 140 is a perfluoroalkoxyalkane Polymer (PFA) piston, and the valve body 110 is also a PFA valve body.

In some embodiments, the spring 150 may be a PFA spring, or a metal spring with a PFA coating to provide suitable spring force.

In summary, the fluid static electricity removing device can be automatically opened according to the pressure of the fluid to discharge the static electricity accumulated in the conveying pipe out of the pipeline, and the piston, the spring and the valve body which are made of PFA material are used to reduce the metal pollution of the fluid, and part of the fluid contacting the metal static electricity guider can be directly discharged through the discharge port, thereby effectively avoiding the pollution of the process fluid, further improving the production quality of the production line, further improving the safety of fluid transmission, and greatly increasing the safety and the process yield of the production process.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention.